(It should be noted that Brie’s “Community” co-star, Donald Glover, aka Childish Gambino, will perform at Lollapalooza Sunday and at the CK One-sponsored Rock the Vote Nights party at the Hard Rock Hotel later that night.)

Pete Wentz and his Black Cards bandmate Spencer Peterson DJed the Hyundai-sponsored party at Angels & Kings, which Wentz co-owns, in the Hard Rock Hotel Thursday. Wentz and former "Malcolm in the Middle" actor Chris Masterson headed to Board Room later that night and were seen taking pictures of themselves.

Not again: Cee Lo Green does not have much luck at Lollapalooza lately. The "Forget You" singer, who was booed during his Lollapalooza set in 2011, was putting on a much better show Thursday at the Soul Electronics-sponsored party in the Hard Rock Hotel's Fender Ballroom but then said he couldn’t play the last song due to equipment malfunction.

He spent the last few minutes of the show, which began with a set by R&B singer Miguel and was attended by rapper Twista and “Mob Wives Chicago” cast member Pia Rizza, talking to the crowd and taking photos with them, likely because he was scheduled to play until 2 am and needed to stall. “I’m scared they’re going to take my money back from me now,” Green told the audience.

Earlier in the day, Green had lunch at Manny's Cafeteria & Delicatessen in the South Loop. He ordered the corned beef reuben sandwich and took a photo with owners with Matt and Dan Raskin.

On the record: "It's a really well-known name. But honestly, I don't know much more than that. I mean, I've played Chicago a lot. It's one of the first cities that I started playing. This is the first festival I'm doing there. So I'm really excited to see what the fuss is about." -- DJ and Lollapalooza headliner Avicii talks to MTV about Lollapalooza.

It’s hard to predict all of the celebrities who will attend Lollapalooza this year. Unlike a major sporting event in Chicago, the stars in the Lollapalooza crowd aren’t just actors, musicians and athletes with local ties. They’re often from all over the country and can be...

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